What programs can view .pdo files?

[Pav]

I don't really feel like spending $20 on the full version of Pepakura so that I can scale some of my armor files to the correct size, so I'm wondering if there's other programs that can open .pdo files?

 

[HaloGoddess]

You do NOT have to pay for the full version. You can still use pepakura designer to scale. However, you will NOT be able to save your progress so it's recommended that you write down your measurements so if you need to open the file again and need to size it, you will have your numbers handy.